2 * linux/arch/arm/mach-pxa/mainstone.c
4 * Support for the Intel HCDDBBVA0 Development Platform.
5 * (go figure how they came up with such name...)
7 * Author: Nicolas Pitre
8 * Created: Nov 05, 2002
9 * Copyright: MontaVista Software Inc.
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/sysdev.h>
19 #include <linux/interrupt.h>
20 #include <linux/sched.h>
21 #include <linux/bitops.h>
24 #include <asm/types.h>
25 #include <asm/setup.h>
26 #include <asm/memory.h>
27 #include <asm/mach-types.h>
28 #include <asm/hardware.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
33 #include <asm/mach/irq.h>
35 #include <asm/arch/pxa-regs.h>
36 #include <asm/arch/mainstone.h>
37 #include <asm/arch/audio.h>
38 #include <asm/arch/pxafb.h>
39 #include <asm/arch/mmc.h>
40 #include <asm/arch/irda.h>
45 static unsigned long mainstone_irq_enabled
;
47 static void mainstone_mask_irq(unsigned int irq
)
49 int mainstone_irq
= (irq
- MAINSTONE_IRQ(0));
50 MST_INTMSKENA
= (mainstone_irq_enabled
&= ~(1 << mainstone_irq
));
53 static void mainstone_unmask_irq(unsigned int irq
)
55 int mainstone_irq
= (irq
- MAINSTONE_IRQ(0));
56 /* the irq can be acknowledged only if deasserted, so it's done here */
57 MST_INTSETCLR
&= ~(1 << mainstone_irq
);
58 MST_INTMSKENA
= (mainstone_irq_enabled
|= (1 << mainstone_irq
));
61 static struct irqchip mainstone_irq_chip
= {
62 .ack
= mainstone_mask_irq
,
63 .mask
= mainstone_mask_irq
,
64 .unmask
= mainstone_unmask_irq
,
67 static void mainstone_irq_handler(unsigned int irq
, struct irqdesc
*desc
,
70 unsigned long pending
= MST_INTSETCLR
& mainstone_irq_enabled
;
72 GEDR(0) = GPIO_bit(0); /* clear useless edge notification */
73 if (likely(pending
)) {
74 irq
= MAINSTONE_IRQ(0) + __ffs(pending
);
75 desc
= irq_desc
+ irq
;
76 desc_handle_irq(irq
, desc
, regs
);
78 pending
= MST_INTSETCLR
& mainstone_irq_enabled
;
82 static void __init
mainstone_init_irq(void)
88 /* setup extra Mainstone irqs */
89 for(irq
= MAINSTONE_IRQ(0); irq
<= MAINSTONE_IRQ(15); irq
++) {
90 set_irq_chip(irq
, &mainstone_irq_chip
);
91 set_irq_handler(irq
, do_level_IRQ
);
92 set_irq_flags(irq
, IRQF_VALID
| IRQF_PROBE
);
94 set_irq_flags(MAINSTONE_IRQ(8), 0);
95 set_irq_flags(MAINSTONE_IRQ(12), 0);
100 set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler
);
101 set_irq_type(IRQ_GPIO(0), IRQT_FALLING
);
106 static int mainstone_irq_resume(struct sys_device
*dev
)
108 MST_INTMSKENA
= mainstone_irq_enabled
;
112 static struct sysdev_class mainstone_irq_sysclass
= {
113 set_kset_name("cpld_irq"),
114 .resume
= mainstone_irq_resume
,
117 static struct sys_device mainstone_irq_device
= {
118 .cls
= &mainstone_irq_sysclass
,
121 static int __init
mainstone_irq_device_init(void)
123 int ret
= sysdev_class_register(&mainstone_irq_sysclass
);
125 ret
= sysdev_register(&mainstone_irq_device
);
129 device_initcall(mainstone_irq_device_init
);
134 static struct resource smc91x_resources
[] = {
136 .start
= (MST_ETH_PHYS
+ 0x300),
137 .end
= (MST_ETH_PHYS
+ 0xfffff),
138 .flags
= IORESOURCE_MEM
,
141 .start
= MAINSTONE_IRQ(3),
142 .end
= MAINSTONE_IRQ(3),
143 .flags
= IORESOURCE_IRQ
,
147 static struct platform_device smc91x_device
= {
150 .num_resources
= ARRAY_SIZE(smc91x_resources
),
151 .resource
= smc91x_resources
,
154 static int mst_audio_startup(snd_pcm_substream_t
*substream
, void *priv
)
156 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
157 MST_MSCWR2
&= ~MST_MSCWR2_AC97_SPKROFF
;
161 static void mst_audio_shutdown(snd_pcm_substream_t
*substream
, void *priv
)
163 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
164 MST_MSCWR2
|= MST_MSCWR2_AC97_SPKROFF
;
167 static long mst_audio_suspend_mask
;
169 static void mst_audio_suspend(void *priv
)
171 mst_audio_suspend_mask
= MST_MSCWR2
;
172 MST_MSCWR2
|= MST_MSCWR2_AC97_SPKROFF
;
175 static void mst_audio_resume(void *priv
)
177 MST_MSCWR2
&= mst_audio_suspend_mask
| ~MST_MSCWR2_AC97_SPKROFF
;
180 static pxa2xx_audio_ops_t mst_audio_ops
= {
181 .startup
= mst_audio_startup
,
182 .shutdown
= mst_audio_shutdown
,
183 .suspend
= mst_audio_suspend
,
184 .resume
= mst_audio_resume
,
187 static struct platform_device mst_audio_device
= {
188 .name
= "pxa2xx-ac97",
190 .dev
= { .platform_data
= &mst_audio_ops
},
193 static void mainstone_backlight_power(int on
)
196 pxa_gpio_mode(GPIO16_PWM0_MD
);
197 pxa_set_cken(CKEN0_PWM0
, 1);
205 pxa_set_cken(CKEN0_PWM0
, 0);
209 static struct pxafb_mach_info toshiba_ltm04c380k __initdata
= {
220 .sync
= FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
,
223 .pxafb_backlight_power
= mainstone_backlight_power
,
226 static struct pxafb_mach_info toshiba_ltm035a776c __initdata
= {
237 .sync
= FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
,
240 .pxafb_backlight_power
= mainstone_backlight_power
,
243 static int mainstone_mci_init(struct device
*dev
, irqreturn_t (*mstone_detect_int
)(int, void *, struct pt_regs
*), void *data
)
248 * setup GPIO for PXA27x MMC controller
250 pxa_gpio_mode(GPIO32_MMCCLK_MD
);
251 pxa_gpio_mode(GPIO112_MMCCMD_MD
);
252 pxa_gpio_mode(GPIO92_MMCDAT0_MD
);
253 pxa_gpio_mode(GPIO109_MMCDAT1_MD
);
254 pxa_gpio_mode(GPIO110_MMCDAT2_MD
);
255 pxa_gpio_mode(GPIO111_MMCDAT3_MD
);
257 /* make sure SD/Memory Stick multiplexer's signals
258 * are routed to MMC controller
260 MST_MSCWR1
&= ~MST_MSCWR1_MS_SEL
;
262 err
= request_irq(MAINSTONE_MMC_IRQ
, mstone_detect_int
, SA_INTERRUPT
,
263 "MMC card detect", data
);
265 printk(KERN_ERR
"mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
272 static void mainstone_mci_setpower(struct device
*dev
, unsigned int vdd
)
274 struct pxamci_platform_data
* p_d
= dev
->platform_data
;
276 if (( 1 << vdd
) & p_d
->ocr_mask
) {
277 printk(KERN_DEBUG
"%s: on\n", __FUNCTION__
);
278 MST_MSCWR1
|= MST_MSCWR1_MMC_ON
;
279 MST_MSCWR1
&= ~MST_MSCWR1_MS_SEL
;
281 printk(KERN_DEBUG
"%s: off\n", __FUNCTION__
);
282 MST_MSCWR1
&= ~MST_MSCWR1_MMC_ON
;
286 static void mainstone_mci_exit(struct device
*dev
, void *data
)
288 free_irq(MAINSTONE_MMC_IRQ
, data
);
291 static struct pxamci_platform_data mainstone_mci_platform_data
= {
292 .ocr_mask
= MMC_VDD_32_33
|MMC_VDD_33_34
,
293 .init
= mainstone_mci_init
,
294 .setpower
= mainstone_mci_setpower
,
295 .exit
= mainstone_mci_exit
,
298 static void mainstone_irda_transceiver_mode(struct device
*dev
, int mode
)
302 local_irq_save(flags
);
303 if (mode
& IR_SIRMODE
) {
304 MST_MSCWR1
&= ~MST_MSCWR1_IRDA_FIR
;
305 } else if (mode
& IR_FIRMODE
) {
306 MST_MSCWR1
|= MST_MSCWR1_IRDA_FIR
;
309 MST_MSCWR1
= (MST_MSCWR1
& ~MST_MSCWR1_IRDA_MASK
) | MST_MSCWR1_IRDA_OFF
;
311 MST_MSCWR1
= (MST_MSCWR1
& ~MST_MSCWR1_IRDA_MASK
) | MST_MSCWR1_IRDA_FULL
;
313 local_irq_restore(flags
);
316 static struct pxaficp_platform_data mainstone_ficp_platform_data
= {
317 .transceiver_cap
= IR_SIRMODE
| IR_FIRMODE
| IR_OFF
,
318 .transceiver_mode
= mainstone_irda_transceiver_mode
,
321 static void __init
mainstone_init(void)
324 * On Mainstone, we route AC97_SYSCLK via GPIO45 to
325 * the audio daughter card
327 pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD
);
329 platform_device_register(&smc91x_device
);
330 platform_device_register(&mst_audio_device
);
332 /* reading Mainstone's "Virtual Configuration Register"
333 might be handy to select LCD type here */
335 set_pxa_fb_info(&toshiba_ltm04c380k
);
337 set_pxa_fb_info(&toshiba_ltm035a776c
);
339 pxa_set_mci_info(&mainstone_mci_platform_data
);
340 pxa_set_ficp_info(&mainstone_ficp_platform_data
);
344 static struct map_desc mainstone_io_desc
[] __initdata
= {
346 .virtual = MST_FPGA_VIRT
,
347 .pfn
= __phys_to_pfn(MST_FPGA_PHYS
),
348 .length
= 0x00100000,
353 static void __init
mainstone_map_io(void)
356 iotable_init(mainstone_io_desc
, ARRAY_SIZE(mainstone_io_desc
));
358 /* initialize sleep mode regs (wake-up sources, etc) */
366 /* for use I SRAM as framebuffer. */
369 /* For Keypad wakeup. */
373 /* Need read PKWR back after set it. */
377 MACHINE_START(MAINSTONE
, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
378 /* Maintainer: MontaVista Software Inc. */
379 .phys_ram
= 0xa0000000,
380 .phys_io
= 0x40000000,
381 .io_pg_offst
= (io_p2v(0x40000000) >> 18) & 0xfffc,
382 .map_io
= mainstone_map_io
,
383 .init_irq
= mainstone_init_irq
,
385 .init_machine
= mainstone_init
,